| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Arizona > Copper (Spinel Law Twins) |
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| DESCRIPTION: | No. 66090 |
| Mineral: | Copper (Spinel Law Twins) |
| Locality: | Ray Mine, Mineral Creek District, Pinal County, Arizona |
| Description: | Sharp, well crystallized copper crystals with elongated form indicative of twinning following the Spinel Law of isometric twinning. The copper crystals have a green patina, often attributed to malachite or chrysocolla, but is a mixture of many minerals. |
| Overall Size: | 29x22x13 mm |
| Crystals: | 1-11 mm |
| Archived: | For reference only |
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